Economic and safety factors are discussed in relation to a switch from hydrogen to helium in airships.
Use of helium in airships
1923-06-01
Sonstige
Keine Angabe
Englisch
Engineering Index Backfile | 1921
Helium and its value for airships
Engineering Index Backfile | 1925
|The employment of helium in airships
Engineering Index Backfile | 1923
|Engineering Index Backfile | 1919
|NTIS | 1974